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Mra a Loading Calculations <br /> Variable value Umik ¢ysrrintion <br /> Q 400 gallons per day Effluent flow rate from report <br /> Nw 35 mg.rL-N Effluent stream concentration from report <br /> A 2.14 acres Site area from report <br /> Nb 0,107 mglL-N Concentration of rainwater from report <br /> d 0.35 constant Denitrification factor from report <br /> R 8.51 inches per year Recharge rate of rainfall from report{evapotranspiration method; <br /> W 2.5 inches per year Uniform waste water loading for site calculation result <br /> N 5.3 mgfL-N RESULT: Longterm average concantraflan of percolating effluent <br /> Find Variable(Wl: <br /> (1Ny L = (Q) 0 x A-W x 365365 darts} x 1 acre x 12_io- x L5.ft <br /> yr day 7.48 gal 1 year 43,560 ft2 1 ft (A)acre(s) <br /> 2.51 inlyr(s*)=400 gallday x(f cu-1(I7.48 gals)x(365 daysl f year)x(1 acre143,560 sq-a)x(7 2 m I l ft)x(1 site 12,14 acres) <br /> Nantzschg-Fennemore Lquation ft): <br /> N,= WN,j1-d)+RN <br /> W+R <br /> 5.2 7 mg4_44={(2.51 inlyr x 35 mart-N x(1-0.35))+(8.51 fnyr x 0.107mg1L-N))I(2.57 inlyr+8.51 Jrdyr) <br /> Assumptions; <br /> •ons; <br /> t. Total nitrogen ooncontra ton of i nftue nt waste stream is 35 mg1L-N. if different influent concentrations exist,use weighted average <br /> 2. Fraction of nitrate-N loss due to danitrification In the soil is 35%. <br /> 3. Estimated deep percolation of rainFall Is 8.51 inlyr. <br /> 4. Background nitrate-N concentration of rainfall is 0.107 mg1L-N. <br /> Afts. Nitrate Loading Calculation Plate No.: 15 <br /> jvpllww� Project No. 2312 <br /> _ Guzman Property <br /> LIVE OAK 4011 E.Woodson Rd. Date: May 3,2023 <br /> GFO ENVIRONMENTAL INC. Acampo,CA <br />